2021

  1. ICD-10-CM Codes
    2. ›
  2. C00-D49 Neoplasms
    3. ›
  3. C40-C41 Malignant neoplasms of bone and articular cartilage
    4. ›
  4. C41- Malignant neoplasm of bone and articular cartilage of other and unspecified sites
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code C41

2021 ICD-10-CM Diagnosis Code C41

Malignant neoplasm of bone and articular cartilage of other and unspecified sites

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • C41 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • Short description: Malignant neoplasm of bone/artic cartl of and unsp sites
  • The 2021 edition of ICD-10-CM C41 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of C41 - other international versions of ICD-10 C41 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as C41. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • malignant neoplasm of bones of limbs (
    ICD-10-CM Diagnosis Code C40
    • C40 Malignant neoplasm of bone and articular cart...
      • C40.0 Malignant neoplasm of scapula and long bones ...
        • C40.00 Malignant neoplasm of scapula and long bones ...
        • C40.01 Malignant neoplasm of scapula and long bones ...
        • C40.02 Malignant neoplasm of scapula and long bones ...
      • C40.1 Malignant neoplasm of short bones of upper li...
        • C40.10 Malignant neoplasm of short bones of unspecif...
        • C40.11 Malignant neoplasm of short bones of right up...
        • C40.12 Malignant neoplasm of short bones of left upp...
      • C40.2 Malignant neoplasm of long bones of lower lim...
        • C40.20 Malignant neoplasm of long bones of unspecifi...
        • C40.21 Malignant neoplasm of long bones of right low...
        • C40.22 Malignant neoplasm of long bones of left lowe...
      • C40.3 Malignant neoplasm of short bones of lower li...
        • C40.30 Malignant neoplasm of short bones of unspecif...
        • C40.31 Malignant neoplasm of short bones of right lo...
        • C40.32 Malignant neoplasm of short bones of left low...
      • C40.8 Malignant neoplasm of overlapping sites of bo...
        • C40.80 Malignant neoplasm of overlapping sites of bo...
        • C40.81 Malignant neoplasm of overlapping sites of bo...
        • C40.82 Malignant neoplasm of overlapping sites of bo...
      • C40.9 Malignant neoplasm of unspecified bones and a...
        • C40.90 Malignant neoplasm of unspecified bones and a...
        • C40.91 Malignant neoplasm of unspecified bones and a...
        • C40.92 Malignant neoplasm of unspecified bones and a...
    C40.-
    )
  • malignant neoplasm of cartilage of ear (
    ICD-10-CM Diagnosis Code C49.0

    Malignant neoplasm of connective and soft tissue of head, face and neck

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Malignant neoplasm of connective tissue of ear
    • Malignant neoplasm of connective tissue of eyelid
    Type 1 Excludes
    • connective tissue of orbit (C69.6-)
    C49.0
    )
  • malignant neoplasm of cartilage of eyelid (
    ICD-10-CM Diagnosis Code C49.0

    Malignant neoplasm of connective and soft tissue of head, face and neck

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Malignant neoplasm of connective tissue of ear
    • Malignant neoplasm of connective tissue of eyelid
    Type 1 Excludes
    • connective tissue of orbit (C69.6-)
    C49.0
    )
  • malignant neoplasm of cartilage of larynx (
    ICD-10-CM Diagnosis Code C32.3

    Malignant neoplasm of laryngeal cartilage

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    C32.3
    )
  • malignant neoplasm of cartilage of limbs (
    ICD-10-CM Diagnosis Code C40
    • C40 Malignant neoplasm of bone and articular cart...
      • C40.0 Malignant neoplasm of scapula and long bones ...
        • C40.00 Malignant neoplasm of scapula and long bones ...
        • C40.01 Malignant neoplasm of scapula and long bones ...
        • C40.02 Malignant neoplasm of scapula and long bones ...
      • C40.1 Malignant neoplasm of short bones of upper li...
        • C40.10 Malignant neoplasm of short bones of unspecif...
        • C40.11 Malignant neoplasm of short bones of right up...
        • C40.12 Malignant neoplasm of short bones of left upp...
      • C40.2 Malignant neoplasm of long bones of lower lim...
        • C40.20 Malignant neoplasm of long bones of unspecifi...
        • C40.21 Malignant neoplasm of long bones of right low...
        • C40.22 Malignant neoplasm of long bones of left lowe...
      • C40.3 Malignant neoplasm of short bones of lower li...
        • C40.30 Malignant neoplasm of short bones of unspecif...
        • C40.31 Malignant neoplasm of short bones of right lo...
        • C40.32 Malignant neoplasm of short bones of left low...
      • C40.8 Malignant neoplasm of overlapping sites of bo...
        • C40.80 Malignant neoplasm of overlapping sites of bo...
        • C40.81 Malignant neoplasm of overlapping sites of bo...
        • C40.82 Malignant neoplasm of overlapping sites of bo...
      • C40.9 Malignant neoplasm of unspecified bones and a...
        • C40.90 Malignant neoplasm of unspecified bones and a...
        • C40.91 Malignant neoplasm of unspecified bones and a...
        • C40.92 Malignant neoplasm of unspecified bones and a...
    C40.-
    )
  • malignant neoplasm of cartilage of nose (
    ICD-10-CM Diagnosis Code C30.0

    Malignant neoplasm of nasal cavity

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Malignant neoplasm of cartilage of nose
    • Malignant neoplasm of nasal concha
    • Malignant neoplasm of internal nose
    • Malignant neoplasm of septum of nose
    • Malignant neoplasm of vestibule of nose
    Type 1 Excludes
    • malignant neoplasm of nasal bone (C41.0)
    • malignant neoplasm of nose NOS (C76.0)
    • malignant neoplasm of olfactory bulb (C72.2-)
    • malignant neoplasm of posterior margin of nasal septum and choana (C11.3)
    • malignant melanoma of skin of nose (C43.31)
    • malignant neoplasm of turbinates (C41.0)
    • other and unspecified malignant neoplasm of skin of nose C44.301, C44.311, C44.321, C44.391)
    C30.0
    )
The following code(s) above C41 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to C41:
  • C00-D49
    2021 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • Functional activity
    • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
    • Morphology [Histology]
    • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
    • Primary malignant neoplasms overlapping site boundaries
    • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
    • Malignant neoplasm of ectopic tissue
    • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
    Neoplasms
  • C40-C41
    2021 ICD-10-CM Range C40-C41

    Malignant neoplasms of bone and articular cartilage

    Includes
    • malignant neoplasm of cartilage (articular) (joint)
    • malignant neoplasm of periosteum
    Type 1 Excludes
    • malignant neoplasm of bone marrow NOS (C96.9)
    • malignant neoplasm of synovia (C49.-)
    Malignant neoplasms of bone and articular cartilage
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to C41:
  • Code First: M90.6
    ICD-10-CM Diagnosis Code M90.6

    Osteitis deformans in neoplastic diseases

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Osteitis deformans in malignant neoplasm of bone
    Code First
    Type 1 Excludes
    • osteitis deformans [Paget's disease of bone] (M88.-)
ICD-10-CM Codes Adjacent To C41
C40.31 Malignant neoplasm of short bones of right lower limb
C40.32 Malignant neoplasm of short bones of left lower limb
C40.8 Malignant neoplasm of overlapping sites of bone and articular cartilage of limb
C40.80 Malignant neoplasm of overlapping sites of bone and articular cartilage of unspecified limb
C40.81 Malignant neoplasm of overlapping sites of bone and articular cartilage of right limb
C40.82 Malignant neoplasm of overlapping sites of bone and articular cartilage of left limb
C40.9 Malignant neoplasm of unspecified bones and articular cartilage of limb
C40.90 Malignant neoplasm of unspecified bones and articular cartilage of unspecified limb
C40.91 Malignant neoplasm of unspecified bones and articular cartilage of right limb
C40.92 Malignant neoplasm of unspecified bones and articular cartilage of left limb
C41 Malignant neoplasm of bone and articular cartilage of other and unspecified sites
C41.0 Malignant neoplasm of bones of skull and face
C41.1 Malignant neoplasm of mandible
C41.2 Malignant neoplasm of vertebral column
C41.3 Malignant neoplasm of ribs, sternum and clavicle
C41.4 Malignant neoplasm of pelvic bones, sacrum and coccyx
C41.9 Malignant neoplasm of bone and articular cartilage, unspecified
C43 Malignant melanoma of skin
C43.0 Malignant melanoma of lip
C43.1 Malignant melanoma of eyelid, including canthus
C43.10 Malignant melanoma of unspecified eyelid, including canthus

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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